A center of excellence for infertility treatment... Helping your dreams become a reality...

[ Home ] [ Up ]

Dr. Yalcin Yavas, Ph.D., HCLD, ELD, Laboratory Director. Dr. Yavas is certified as High-complexity Clinical Laboratory Director (HCLD) and Embryology Laboratory Director (ELD) by the American Board of Bioanalysis (ABB). He is also licensed as Clinical Laboratory Director by the State of Florida both in embryology and andrology. Dr. Yavas received his Master of Science (M.S.) degree from Washington State University, Pullman, Washington, and his doctorate (Ph.D.) degree from University of Guelph, Ontario, Canada, both in reproductive biology. Upon completion of his Ph.D. degree, he acquired several years of extensive experience in all aspects of Assisted Reproductive Technologies (A.R.T.), including micromanipulation. Dr. Yavas has particular expertise in intracytoplasmic sperm injection (ICSI), and has published many articles in scientific journals. Dr. Yavas is a member of the American Society for Reproductive Medicine (ASRM), the American Association of Bioanalysts (AAB), the College of Reproductive Biology, and the Canadian Fertility and Andrology Society (CFAS).

Dr. Yavas is also the designer and developer of our web site, and he maintains and updates it on a regular basis. You may send an e-mail to Dr. Yavas at DrYavas@yahoo.com

Education

•   Ph.D.   January 1997: Reproductive Physiology, Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario, Canada. Major Professor: Dr. John S. Walton.

•   M.S.    May 1992: Reproductive Physiology, Department of Animal Sciences, Washington State University, Pullman, Washington, U.S.A. Major Professor: Dr. Jerry J. Reeves.

Publications

Please click on titles to read the abstracts.

Articles in Scientific Journals

1. 2008 Yavas, Y., and Selub, M.R. Ovarian follicular volume and follicular surface area are better indicators of follicular growth and maturation, respectively, than is follicular diameter. Fertil. Steril. (Alternate Link)

2. 2004 Yavas, Y., and Selub, M.R. Intrauterine insemination (IUI) pregnancy outcome is enhanced by shorter intervals from semen collection to sperm wash, from sperm wash to IUI time, and from semen collection to IUI time. 82(6):1638-1647. Fertil. Steril. (Alternate Link) (Alternate Link)

3. 2001 Khamsi, F., Roberge, S., Yavas, Y., Lacanna, I.C., Zhu, X., and Wong, J. Recent discoveries in physiology of insulin-like growth factor-I and its interaction with gonadotropins in folliculogenesis. 16(3):151-165. Endocrine. (Alternate Link)

4. 2001 Yavas, Y., Roberge, S., Khamsi, F., Shirazi, P., Endman, M.W., and Wong, J.C. Performing ICSI using an injection pipette with the smallest possible inner diameter and a long taper increases normal fertilization rate, decreases incidence of degeneration and tripronuclear zygotes, and enhances embryo development. 18(8):426-435. J. Assist. Reprod. Genet. (Alternate Link)

5. 2001 Khamsi, F., Yavas, Y., Roberge, S., Wong, J.C., Lacanna, I.C., and Endman, M. Intracytoplasmic sperm injection increased fertilization and good-quality embryo formation in patients with non-male factor indications for in vitro fertilization: a prospective randomized study. 75(2):342-347. Fertil. Steril. (Alternate Link) (Alternate Link)

6. 2001 Khamsi, F., Yavas, Y., Lacanna, I.C., Roberge, S., Endman, M., and Wong, J.C. Exposure of human oocytes to endometrioma fluid does not alter fertilization or early embryo development. 18(2):106-109. J. Assist. Reprod. Genet. (Alternate Link)

7. 2000 Khamsi, F., Yavas, Y., Roberge, S., Lacanna, I.C., Wong, J.C., and Endman, M. The status of controlled prospective clinical trials for efficacy of intracytoplasmic sperm injection in in vitro fertilization for non-male factor infertility. 17(9):504-507. J. Assist. Reprod. Genet. (Alternate Link)

8. 2000 Yavas, Y., de Avila, D.M., and Reeves, J.J. Effectiveness of norgestomet implants in suppressing ovulation and estrus in heifers varies with stage of estrous cycle when implanted. 80(4):729-732. Can. J. Anim. Sci.

9. 2000 Yavas, Y., and Walton, J.S. Induction of ovulation in postpartum suckled beef cows. A Review. 54(1):1-23. Theriogenology. (Alternate Link)

10. 2000 Yavas, Y., and Walton, J.S. Postpartum acyclicity in suckled beef cows. A Review. 54(1):25-55. Theriogenology. (Alternate Link)

11. 1999 Yavas, Y., Johnson, W.H., and Walton, J.S. Modification of follicular dynamics by exogenous FSH and progesterone, and the induction of ovulation using hCG in postpartum beef cows. 52(6):949-963. Theriogenology. (Alternate Link)

12. 1999 Khamsi, F., Roberge, S., Lacanna, I.C., Wong, J., and Yavas, Y. Effects of granulosa cells, cumulus cells, and oocyte density on in vitro fertilization in women. 10(2):161-166. Endocrine.

13. 1999 Khamsi, F., Roberge, S., Yavas, Y., Lacanna, I.C., The, B.L., Wong, J., and Endman, M. In vitro fertilization and intra-cytoplasmic sperm injection into the oocyte at Toronto Fertility Sterility Institute (14-year evolution of an independent health facility). 32(2):82-86. Annals of The Royal College of Physicians and Surgeons of Canada.

14. 1996 Yavas, Y., de Avila, D.M., and Reeves, J.J. Trucking stress at breeding does not lower conception rate of beef heifers. 45(3):623-632. Theriogenology.

Letter

1999 Yavas, Y., and Roberge, S. ICSI Technique - Impact on Fertilization Rate. 71(6):1165. Fertil. Steril.

Abstracts

1. 2006 Yavas, Y., and Selub, M.R. Ovarian follicular volume and follicular surface area are more accurate indicators of follicular growth and maturation, respectively, than follicular diameter alone. 86(Suppl.2):S398-S399 (abstr.P-715). Fertil. Steril.

2. 2005 Yavas, Y., and Selub, M.R. Incubating washed spermatozoa at 37^OC rather than keeping at room temperature (20^OC) until intrauterine insemination (IUI) time results in higher pregnancy rate. 84(Suppl.1):S265-S266 (abstr.P-322). Fertil. Steril.

3. 2004 Yavas, Y., Selub, M.R., and Carmichael, D. The adverse effect of female age on intra-uterine insemination (IUI) pregnancy outcome is more pronounced within donor frozen-thawed sperm IUI cycles than within partner’s fresh sperm IUI cycles regardless of stimulation type. 82(Suppl.2):S218 (abstr.P-235). Fertil. Steril.

4. 2003 Yavas, Y., Selub, M.R., Lefkow, H., and Carmichael, D. Intra-uterine insemination (IUI) outcome is enhanced by shorter intervals from semen collection to sperm wash, from sperm wash to IUI time, and from semen collection to IUI time. 80(Suppl.3):S152(abstr.P-97). Fertil. Steril.

5. 2003 Yavas, Y., Selub, M.R., Lefkow, H., and Carmichael, D. Type of donor frozen sperm does not affect intra-uterine insemination (IUI) outcome. 80(Suppl.3):S168(abstr.P-139). Fertil. Steril.

6. 2003 Yavas, Y., Selub, M.R., Lefkow, H., and Carmichael, D. Ovarian stimulation with human menopausal gonadotropin (hMG) is more effective than clomiphene citrate (CC) in intra-uterine insemination (IUI) using partner’s sperm, but not in IUI using donor frozen sperm. 80(Suppl.3):S168(abstr.P-141). Fertil. Steril.

7. 2000 Khamsi, F., Yavas, Y., Roberge, S., Lacanna, I.C., Wong, J.C., and Endman, M. Mural granulosa cells (as opposed to cumulus oophorus) may produce a factor inhibiting oocyte fertilization and early embryo development in human. 46th Annual Meeting (abstr.TP21). Canadian Fertility and Andrology Society.

8. 2000 Khamsi, F., Yavas, Y., Lacanna, I.C., Roberge, S., Endman, M., and Wong, J.C. Exposure of human oocytes to endometrioma fluid does not alter fertilization or early embryo development. 46th Annual Meeting (abstr.FP14). Canadian Fertility and Andrology Society.

9. 2000 Lacanna, I.C., Khamsi, F., Yavas, Y., Roberge, S., Wong, J.C., The, B.L., and Endman, M. Intracytoplasmic sperm injection increased fertilization and good-quality embryo formation in patients with non-male indications for in vitro fertilization. A prospective randomized study. 46th Annual Meeting (abstr.FP15). Canadian Fertility and Andrology Society.

10. 2000 Khamsi, F., Afzal, D.N., The, L., Wong, J., Yavas, Y., and Endman, M. Increasing number of embryos transferred increases pregnancy rate in IVF cycles. 46th Annual Meeting (abstr.FP19). Canadian Fertility and Andrology Society.

11. 1999 Roberge, S., Yavas, Y., Nicot-Montalvo, L., Gopalasundaram, K., Endman, M., and Khamsi, F. Increased DNA synthesis in oocyte-cumulus complexes (OCCs) of rats treated in vivo with an insulin-like growth factor-I (IGF-I) analogue. Suppl. p.S229. (abstr.P-431). Fertil. Steril.

12. 1998 Yavas, Y., Roberge, S., Lacanna, I., Wong, J., Khamsi, F., and Endman, M. Factors that may influence pregnancy rate in an intracytoplasmic sperm injection (ICSI) program. 44th Annual Meeting (abstr.TP5). Canadian Fertility and Andrology Society.

13. 1998 Yavas, Y., Roberge, S., Lacanna, I., Khamsi, F., and Wong, J. Simplification of IVF. 6. The type of syringe used for oocyte aspiration. 44th Annual Meeting (abstr.FP4). Canadian Fertility and Andrology Society.

14. 1998 Roberge, S., Yavas, Y., Shirazi, P., Lacanna, I., Wong, J., and Khamsi, F. Simplification of IVF. 7. Comparison of human serum albumin purchased commercially versus patient's own serum and comparison of commercially purchased culture medium versus culture medium produced on site. 44th Annual Meeting (abstr.FP5). Canadian Fertility and Andrology Society.

15. 1998 Roberge, S., Yavas, Y., Shirazi, P., and Khamsi, F. Effect of ovarian stimulation type on pregnancy outcome in therapeutic donor insemination program. 44th Annual Meeting (abstr.FP21). Canadian Fertility and Andrology Society.

16. 1997 Khamsi, F., Roberge, S., Rouleau, A., Yavas, Y., and Armstrong, D.T. In vivo infusion with IGF-I analogue, long arg³-insulin-like growth factor-I (LR³-IGF-I), enhances superovulatory response in rats. Suppl. p.S88-S89. (abstr.40). Fertil. Steril.

17. 1997 Yavas, Y., Roberge, S., Shirazi, P., Agrawal, A., Llano, M., Wong, J., Lacanna, I., and Khamsi, F. Effects of sperm motility survival rate on fertilization rate in IVF program. 43rd Annual Meeting (abstr.FP33). Canadian Fertility and Andrology Society.

18. 1997 Roberge, S., Yavas, Y., Wong, J., Lacanna, I., and Khamsi, F. Effects of different ovarian stimulation protocols for IVF on cumulus size, estradiol peak and fertilization rate. 43rd Annual Meeting (abstr.TP13). Canadian Fertility and Andrology Society.

19. 1997 Roberge, S., Rouleau, A., Yavas, Y., Armstrong, D.T., and Khamsi, F. Increased ovarian stimulation of rats infused with IGF-I analogue, long arg³-insulin-like growth factor-I (LR³-IGF-I). 43rd Annual Meeting (abstr.FP8). Canadian Fertility and Andrology Society.

20. 1997 Roberge, S., Yavas, Y., Wong, J., Lacanna, I., and Khamsi, F. Cost effectiveness of seeking accreditation of a reproductive laboratory by the College of American Pathologists. 43rd Annual Meeting (abstr.FP32). Canadian Fertility and Andrology Society.

21. 1995 Yavas, Y., Roberge, S., Buhr, M.M., Johnson, W., Liptrap, R.M., and Walton, J.S. Effect of gonadotropins and progesterone on follicular dynamics and ovulation in postpartum beef cows. 73(Suppl.1):231(abstr.485). J. Anim. Sci.

22. 1994 Yavas, Y., Roberge, S., Buhr, M.M., Johnson, W., Liptrap, R.M., and Walton, J.S. Effects of FSH, bST and progesterone on follicular dynamics in postpartum suckled beef cows. 50(Suppl.1):64(abstr.40). Biol. Reprod.

23. 1992 Yavas, Y., and Reeves, J.J. Stress at breeding does not lower conception rates of heifers. 70(Suppl.1):254(abstr.466). J. Anim. Sci.

Presentations

1. 2006 Yavas, Y., and Selub, M.R. Ovarian follicular volume and follicular surface area are more accurate indicators of follicular growth and maturation, respectively, than follicular diameter alone. 62nd Annual Meeting of the American Society for Reproductive Medicine. October 23-25. New Orleans, Louisiana  (poster).

2. 2005 Yavas, Y., and Selub, M.R. Incubating washed spermatozoa at 37^OC rather than keeping at room temperature (20^OC) until intrauterine insemination (IUI) time results in higher pregnancy rate. 61st Annual Meeting of the American Society for Reproductive Medicine. October 17-19. Montreal, Canada (poster).

3. 2004 Yavas, Y., Selub, M.R., and Carmichael, D. The adverse effect of female age on intra-uterine insemination (IUI) pregnancy outcome is more pronounced within donor frozen-thawed sperm IUI cycles than within partner’s fresh sperm IUI cycles regardless of stimulation type. 60th Annual Meeting of the American Society for Reproductive Medicine. October 18-20. Philadelphia, Pennsylvania (poster).

4. 2003 Yavas, Y., Selub, M.R., Lefkow, H., and Carmichael, D. Intra-uterine insemination (IUI) outcome is enhanced by shorter intervals from semen collection to sperm wash, from sperm wash to IUI time, and from semen collection to IUI time. 59th Annual Meeting of the American Society for Reproductive Medicine. October 13-15. San Antonio, Texas (poster).

5. 2003 Yavas, Y., Selub, M.R., Lefkow, H., and Carmichael, D. Ovarian stimulation with human menopausal gonadotropin (hMG) is more effective than clomiphene citrate (CC) in intra-uterine insemination (IUI) using partner’s sperm, but not in IUI using donor frozen sperm. 59th Annual Meeting of the American Society for Reproductive Medicine. October 13-15. San Antonio, Texas (poster).

6. 2003 Yavas, Y., Selub, M.R., Lefkow, H., and Carmichael, D. Type of donor frozen sperm does not affect intra-uterine insemination (IUI) outcome. 59th Annual Meeting of the American Society for Reproductive Medicine. October 13-15. San Antonio, Texas (poster).

7. 1998 Yavas, Y., Roberge, S., Lacanna, I., Wong, J., Khamsi, F., and Endman, M. Factors that may influence pregnancy rate in an intracytoplasmic sperm injection. 44th Annual Meeting of the Canadian Fertility and Andrology Society. September 9-12. Mont-Tremblant, Quebec, Canada (poster).

8. 1998 Yavas, Y., Roberge, S., Lacanna, I., Khamsi, F., and Wong, J. Simplification of IVF. 6. The type of syringe used for oocyte aspiration. 44th Annual Meeting of the Canadian Fertility and Andrology Society. September 9-12. Mont-Tremblant, Quebec, Canada (poster).

9. 1995 Yavas, Y., Roberge, S., Buhr, M.M., Johnson, W., Liptrap, R.M., and Walton, J.S. Effect of gonadotropins and progesterone on follicular dynamics and ovulation in postpartum beef cows. 87th Annual Meeting of the American Society of Animal Science. July 27. Orlando, Florida (slide).

10. 1994 Yavas, Y., Roberge, S., Buhr, M.M., Johnson, W., Liptrap, R.M., and Walton, J.S. Effects of FSH, bST and progesterone on follicular dynamics in postpartum suckled beef cows. 27th Annual Meeting of the Society for the Study of Reproduction. July 24-27. Ann Arbor, Michigan (poster).

11. 1992 Yavas, Y., and Reeves, J.J. Stress at breeding does not lower conception rates of heifers. 84th Annual Meeting of the American Society of Animal Science. August 10. Pittsburgh, Pennsylvania (slide).

Scientific Meetings Attended - Continuing Education

• 2006 American Society for Reproductive Medicine 62nd Annual Meeting. October 23-25. New Orleans, Louisiana.

• 2005 American Society for Reproductive Medicine 61st Annual Meeting. October 17-19. Montreal, Canada.

• 2004 American Society for Reproductive Medicine 60th Annual Meeting. October 18-20. Philadelphia, Pennsylvania.

• 2003 American Society for Reproductive Medicine 59th Annual Meeting. October 13-15. San Antonio, Texas.

• 2003 American Society for Reproductive Medicine Post-graduate Course: Good to Great: A Detailed Analysis of IVF Laboratory Techniques to Improve Outcomes. October 12. San Antonio, Texas.

• 2001 American Society for Reproductive Medicine 57th Annual Meeting. October 22-25. Orlando, Florida.

• 2001 American Society for Reproductive Medicine Post-graduate Course: Molecular, Developmental, and Reproductive Biology of Gametes and Embryos: Basic Concepts and Clinical Applications. October 20-21. Orlando, Florida.

• 1999 Conjoint Annual Meeting of American Society for Reproductive Medicine and Canadian Fertility and Andrology Society. September 27-30. Toronto, Ontario, Canada.

• 1999 American Society for Reproductive Medicine Post-graduate Course: Taking ART to Year 2000: Theories and Solutions for Current Laboratory Practices. September 25-26. Toronto, Ontario, Canada.

• 1999 American Association of Bioanalysts, College of Reproductive Biology Annual Meeting and Educational Conference. May 20-21. San Diego, California.

• 1998 Canadian Fertility and Andrology Society 44th Annual Meeting. September 9-12. Mont-Tremblant, Quebec, Canada.

• 1995 American Society of Animal Science 87th Annual Meeting. July 27. Orlando, Florida.

• 1994 Society for the Study of Reproduction 27th Annual Meeting. July 24-27. Ann Arbor, Michigan.

• 1992 American Society of Animal Science 84th Annual Meeting. August 10. Pittsburgh, Pennsylvania.

• 1991 American Society of Animal Science 83rd Annual Meeting. Reno, Nevada.

• 1990 American Society of Animal Science 82nd Annual Meeting. Bozeman, Montana.

[ Home ] [ Contents ] [ Español ] [ Location ] [ About Us ] [ Services ] [ Fees ] [ Instructions ] [ Accreditation ] [ Accommodations ] [ Laboratory Tour ] [ Clinic Tour ] [ Research ] [ Links ] [ Statistics ] [ Search ] [ Translation ] [ Testimonials ]